Means for tilting a furnace or other apparatus



Jan. 16, 1934- G E TAYLOR ET AL 1,943,494

MEANS FOR TILTING A FURNACE OR OTHER APPARATUS Filed Dec. 14, 1931 3 Sheets-Sheet l Jan. 16, 1934. G. E. TAYLOR Er AL 1,943,494

MEANS FOR TILTING A FURNACE OR OTHER APPARATUS Filed Dec. 14, 1931 .5 Sheets-Sheet 2 Jan. 16, 1934- G. E. TAYLOR ET AL 1,943,494

MEANS FOR TILTING A FURNACE 0R OTHERAPPARATUS Filed Dec. 14, 1951 3' Sheets-Sheet .3

Patented Jan. 16, 1934 UNITED STATES MEANS FOR TILTING A FURNACE OR OTHER APPARATUS George Edward Taylor and Leslie Ellett Thompson, London, England, assignors to Ajax Electrothermic Corporation, Ajax Park, N. J., a corporation of New Jersey, and Ajax Electric Furnace Corporation, Philadelphia, Pa., a corporation of Pennsylvania Application December 14, 1931, Serial No..

580,987, and in Great Britain December 18,

9 Claims.

The invention relates to means for tilting a furnace or other apparatus through an angle greater than 90.

It is sometimes convenient to arrange the pulley systems for effecting the required tilt below the platform carrying the furnace or other object, where the tilting mechanism offers no ob struction to effecting the working processes.

The present invention enables this arrangement to be obtained by a pulley system in which all the parts in their inoperative position are below the platform, and in which a cord passes over two pulleys rigidly connected together and which, when the object has been tilted through a certain angle, are automatically lifted and thereby enable a further angle of tilt to be obtained.

In one construction according to the invention the pulleys are mounted in a carriage slidable in a fixed frame; in a modified construction the pulleys are mounted in a frame pivoted at or adjacent the pivot about which the objectto be tilted is rotatable.

The accompanying drawings illustrate diagrammatically examples of tilting apparatus according to the invention as applied to a furnace.

Figs. 1 and 2 show the tilting apparatus respectively in its initial and final positions.

Fig. 3 shows a slight modification and Fig. 4 an apparatus generally similar to that of Figs. 1 and 2 but modified to obtain a greater angular movement without any substantial increase in the height of the apparatus.

Figs. 5 and 6 show, respectively, in the initial and final positions a further modification.

Figs. 7 and 8 show also, respectively, in the initial and final positions a further slight modification.

Referring to Figs. 1 and 2, A is the furnace pivoted at a at the level of the platform B; a door I) normally at the same level as the platform, moves with the furnace as the latter'is tilted about its pivot a; a is the furnace cradle to which one end of the rope C is secured and guided in the curved channel o The rope or other flexible connection C passes' round two pulleys D, D freely mounted, respectively, at the upper and lower ends of a carriage E slidable in a fixed girder frame F; the rope also .passes over a pulley G freely mounted in a bracket g secured to the frame F. The free end of the rope is led to a winch and the friction of the sliding carriage is reduced by rollers e secured to the carriage and engaging with the sides of the frame.

As the rope is wound up by the winch, the furnace A is gradually tilted about its pivot a, taking with it the door I), the sliding carriage remaining in its original position, shown in Fig. 1; when, however, the furnace has been tilted through about 90 and further angular movement could not be effected in the original position of the sliding carriage, the latter automatically slides upwards and takes up the posi tion shown in Fig. 2 in which any further upward movement is arrested by a suitably disposed stop.

The tilting apparatus shown in Fig. 3 differs only from that described above in that the frame F and carriage E are formed in the arc of a circle of which the centre is at the pivot a of the furnace.

In the modification shown in Fig. 4, the frame F of the sliding carriage E is not fixed but adapted to slide in a fixed frame H, and for this purpose the rope C passes also round a pulley I, carried in a bracket 1' secured to the bottom of the frame F and round a pulley J secured by a bracket 7' to the frame H. This construction allows the furnace to tilt through a larger angle for the same vertical dimensions of the pulley system. At a definite angle of tilt, the carriage E will rise and, when it has reached its upper position, the frame F will also be forced upwards.

In the construction shown in Figs. 5 and 6, the pulleys D D are freely mounted at the corners of a triangular frame or carriage K rotatable about the pivot a or a pivot a adjacent to a.

The rope C passes over the pulleys D D and a pulley G carried by a bracket g secured to the platform B. At a certain angle of tilt, where further angular motion would otherwise be impossible, the triangular frame or carriage K is raised about its pivot a and allows the required tilting movement to be completed.

In the example shown in Figs. '7 and 8, the frame or carriage K is pivoted in a bracket i, secured to the platform. A pulley wheel D on the pivot of the frame or carriage serves to guide the rope C in the lowered position of the frame or carriage. A hinged flap 1) is raised when the frame or carriage K is automatically raised.

It will be evident that, while our tilting mechanism is best applied for tilting a furnace, it may equally well be used for tilting other objects, and the word furnace is to be considered as typical of the character of object to be tilted, and not in a limiting sense.

We claim:-

1. In furnace mechanism, a furnace, fixed pivotal mounting for the furnace, a flexible connection secured to the furnace, a pulley over which the flexible connection passes, means for pulling on the flexible connection to swing the furnace about its fixed pivot and means for moving the pulley bodily upward to a position above the fixed pivot, whereby the furnace may be tilted more than 90.

2. In furnace mechanism, a pivotally mounted furnace, a flexible connection secured to the furnace below its pivot, a carriage, a pulley pivotally mounted on the carriage below the furnace pivot and guiding the flexible connection and means for moving the carriage upward to a position above the furnace pivot.

3. In furnace mechanism, a furnace, fixed pivotal mounting for the furnace, a flexible connection attached to the furnace below its pivot, a pulley guiding flexible connection and means operated by pull on the flexible connection for raising the pulley bodily from a position below the furnace pivot to a position above the furnace pivot, whereby the furnace may be tilted more than 90.

i. In furnace mechanism, a furnace, fixed pivotal mounting for the furnace, a flexible connection attached to the furnace below its pivot,apulley guiding the flexible connection above its point of attachment to the furnace and means operated pull on the flexible connection for raising the pulley bodily from a position below the furnace pivot to a position above the furnace pivot, whereby the furnace may be tilted more than 90.

5. In furnace mechanism, a tiltable furnace, a flexible connection attached to the furnace below its axis of tilting, a carriage, means on the carriage for guiding the flexible connection and means operated by pull on the flexible connection for elevating the carriage from a position in which the guiding means is below the axis of tilt of the furnace to one in which the guiding means is above the axis of tilt of the furnace.

the

a flexible connection attached to the furnace below its axis of tilting, a carriage, upper and lower pulleys on the carriage guiding the flexible connection, means for supporting and guiding the carriage during upward movement, a fixed pulley located above the lower pulley and guiding the flexible connection and a support for the fixed pulley, the flexible connection passing from the furnace, over the upper pulley, over the lower pulley and then over the fixed pulley, and the upper pulley being movable from a position below the axis of tilt of the furnace to one above the axis of tilt of the furnace.

'7. In furnace mechanism, a tiltable furnace, a flexible connection secured to the furnace below its axis of tilting, a reciprocatory carriage, guides for the carriage, upper and lower pulleys on the carriage and a fixed pulley above the lower pulley, the flexible connection passing over the upper pulley, then over the lower pulley, and then over the fixed pulley, and the upper pulley being movable from a position below the axis of tilt of the furnace to one above the axis of tilt of the furnace.

8. In furnace mechanism, a tiltable furnace, a flexible connection secured to the furnace below its axis of tilting, an arcuate reciprocatory carriage, guides for the carriage, upper and lower pulleys on the carriage and a fixed pulley above the lower pulley, the flexible connection passing over the upper pulley, then over the lower pulley, and then over the fixed pulley.

9. In furnace mechanism, a tiltable furnace, a flexible connection secured to the furnace be low its axis of tilting, a rockable carriage, upper and lower pulleys on the carriage, and a fixed pulley above the lower pulley, the flexible connection passing from the furnace, over the upper pulley, then over the lower pulley and then over the fixed pulley, and the upper pulley being movable from a position below the axis of tilt of the furnace to one above the axis of tilt of the furnace.

GEORGE EDWARD TAYLOR.

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6. In furnace mechanism, a tiltable furnace,

LESLIE ELLETT THOMPSON. 

